Permutation-vise.



No. 667,|52. Patented Ian. 29, IBM. J. R. LONG.

PERMUTATION VISE.

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JOHN R. LONG, OF SPRINGFIELD, OHIO, ASSIGNOR OF ONE-HALF TO JOHN CRAY,OF SAME PLACE.

PERM UTATION-VISE.

SPECIFICATION forming part of Letters Patent No. 667,152, dated January29, 1901.

Application filed August 17, 1900- 'beriai No. 27,134. tNo model.)

To LI/ZZ whom it may concern:

Be it known that I, JOHN R. LONG, a citizen of the United States,residing at Springfield township, in the county of Summit and State ofOhio, have invented a certain new and useful Improvement in Permutation-Vises, of which the following is a specification.

My invention has relation to improvements to in Vises for the use ofmechanics; and it has for one object the construction of a vise the jawsof which may be arranged to extend above the clamping-screw in theordinary manner or to project laterally from the screw,

so that the jaws lie in a horizontal plane and in either position shallbe revoluble about a supporting-pivot.

A further purpose is to so arrange the parts that the tightening of thescrew shall lock the vise against rotation on its supporting-pivot,

and a final object is to so construct the various parts that they willcooperate accurately with a minimum of friction.

To the aforesaid objects my invention con- 2 5 sists in the peculiar andnovel construction,

arrangement,and combination of parts hereinafter described and thenspecifically pointed out in the claims, reference being had to theaccompanying drawings, forming a part 0 of this specification.

In the accompanying drawings, in which similar ref erence-numeralsindicate like parts in the different views, Figure 1 is a side elevationof the simplest form of my improved vise; Fig. 2, a verticallongitudinal section of the same; Fig. 3, a section at the line X X ofFig. 1; Fig. 4, a side elevation showing a slight modification ofconstruction; Fig. 5, a vertical longitudinal section of Fig. 4, and

Fig. 6 a section at the line Z Z of Fig. 4.

Referring to the drawings, 1 is the fixed jaw, in the base of which is acylindrical vertical opening 2, intersecting which is a horizontalcylindrical opening 3 of like size and both accurately bored to fit acylindrical post 4,

rising from and integral with a plate 5, having a depending lip 6 toengage the edge of the bench on which the vise is to be mounted.

Extending through the intermediate part of the jaw 1 is a horizontalopening 7 to receive the guide-bar 8 of the movable jaw 9,

and this opening 7 extends downward at the front nearly to the lowerline of the opening 3 and for a purpose to be stated.

The guide-bar 8 is in cross-section in form of a hollow parallelogramopen in its under face, and through this extends the screw 10, providedwith the turning-handle 11,retained at the front by the collar 12 and atits outer end by a washer held by upsetting the end of the screw thereinor other preferred means.

Fitted to move freely in the guide-bar 8 is a block 13, which has anopening from front to back to permit the free movement of the screw 10and a transverse opening in which rests a nut 14, adapted to mesh withthe screw 10.

The block 13 is pivotally secured in the opening in the fixed jaw bymeans of a bolt 15, on which it has a slight movement and has the partthat rests in the downward extension of the opening 7 conformed andarranged to encounter and bear against the post 4 when. forced inward.Hence when the screw is turned to close the jaws upon any article theeffect is also to rock the block 13 on its pivot and press the lowerpart against the post 4, thereby locking the vise against rotation.

In the modifications shown in Figs. 4,5,and 8o 6 and which is peculiarlyadapted to taking larger articles the block 13 is extended farther tothe front and provided with oppositely-disposed rollers 16, on which theedges of the guide-bar 8 ride. The result of this arrangement is that asthe jaws are closed on an article the slight depression of the movablejaw incident to the resistance of the article causes the edges of theguide-bar to press on the rollers 16 and rock the block 13 on its pivot,thus forcing it against the post 4, which force increases as the vise isclosed more tightly.

From the foregoing description it will be apparent that the vise may beused either vertically or horizontally as the post rests in the opening2 or 3, and in either position the effect of firmly closing the jawswill be to lock the vise against rotation on the post 4.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. An improved vise having a supporting cylindrical post, a fixed jawrevolubly mounted thereon, with an opening for the guide-bar of themovable jaw, and fora rocking block; a rocking block pivotally mountedtherein bearing a nut, and arranged to be forced against the post bycompressing the jaws; a guide-bar bearing a movable jaw arranged toslide in the fixed jaw and a screw to compress said jaws, substantiallyas shown and described.

2. An improved vise having a supporting cylindrical post, a fixed jawrevolubly mounted thereon with an opening for the guide-bar of themovable jaw and for a rocking block;

JOHN R. LONG.

In presence of O. P. HUMPHREY, C. E. HUMPHREY.

